General Specifications About Tightening Torques; Definition Of Units Of Measurement - Yamaha SZR 660 Service Manual

MAINTENANCE
SPECIFICATIONS
B-6
Thread
size
Tightening
Part to
be tightened Q.ty torque Note
Nm
mkg
Under
bracket
and
fork
M8
X1.25 4 23
2.3
Socket head screw
Handle bar fastening
to
fork
M8 xl
25 4 23
2.3 Socket
head screw
Handle crown
nut
M22
x
1
.0
1
110
11.0
Nut
Counterweight
to
handle bar fastening
M8
x
1
.25
2
25
2.5
Socket head screw
Upper steering ring nut
and
steering
column
M25x1.0
2 3 0.3 Ring nut
Rear/front
braking
circuit:
Front brake master cylinder
and
M6
X1.0 2 10
1.0
Socket head screw
fastening bracket to
handle bar
Brake
fluid
tank (front
bracket)
M6
xl.O 2
10 1.0 Socket
head screw
Front brake
master
cylinder
and
brake
hose M10
x 1.0
1
15
1.5 Joint
Front
brake
caliper
and brake hose
M10x
1.0
1
15 1.5
Joint
Front
and
rear brake
fluid
bleeder
screw M10x1.0
1
6 0.6 Air bleeder
Front brake
caliper to front fork
MlOx
1.5
2 50
5.0 Hexagonal head screw
with
flange
Front wheel axle
M16x
1.5
1
70
7.0
Axle
Front
wheel
axle fastening
bolt
M8 xl.25
1
15
1.5
Socket head screw
Front/rear brake disk and hub
M8
X1.25 6+3 23
2.3 Socket
thin
head screw
Footrest
and
rear
brake master
cylinder
M6
xl.O 2 13
1.3
Hexagonal head screw
Bracket and
rear brake
fluid
tank
M6
xl.O
1
4 0.4 Socket head screw
Rear
brake caliper and bracket
M8
x 1
.25
2 23
2.3
Socket
thin
head screw
Rear
brake caliper and brake hose
M10x1.0
1
15
1.5 Joint
Rear brake master
cylinder
and
brake
hose M10x1.0
1
15
1.5 Joint
Driven sprocket and hub
clutch
M8
x
1
.25 6
23
2.3 Hexagonal head screw
Rear wheel axle nut
M14X1.5
1
80
8.0
Axle + tocknut
Shock
absorber/rear arm:
Rear
arm/rear
arm
axle
and
main frame
Ml8x
1.5
1
110
11 Axle
-t-
locknut
Rear arm and
connecting rods
M10x
1.25
1
40
4.0 Boit + locknut
Relay arm and
connecting rods
M10x
t.25
1
40
4,0
Bolt
+ locknut
Relay
arm and
frame
M10x
1.25
1
40
4.0 Bolt + locknut
Relay arm
and shock absorber
M10x
1.25
1
40
4.0 Boit
-*-
locknut
Shock absorber and
frame
M10x1.25
1
40 4.0
Boit + locknut
Chain guard
seal
and
rear
arm
M6
xl.O
1
5
0.5
Hexagonal head screw
Chain case and
rear
arm M6
xl.O 2 9
0.9
Hexagonal head screw
GENERAL
SPECIFICATIONS
ABOUT
TIGHTENING
TORQUES/DEFINITION OF UNITS OF
MEASUREMENT
GENERAL
SPECIFICATIONS
ABOUT
TIGHTENING
TORQUES
This table indicates the tightening torques
for
stand-
ard attachments with ISO-pitch thread.
Torque
specifications for special
components
or units are
indicated
in
the related sections of this rnanual-
In
order
to
avoid
any damage, tighten those
units
with
many
fastenings by following a progressive
cross sequence,
until
the
final
tightening torque
is
obtained. Unless otherwise specified, the tight-
ening torques given are
meant
for
clean
and
dry
threads.
All
components must
be at
ambient tem-
perature.
SPEC
0F
A: Distance between
flat
parts
B:
External thread diameter
A
(Nut)
B
(Bolt)
General
specification
about
tightening torques
Nm
mkg
10
mm
6
mm
6
0.6
12
mm
8
mm
15
1.5
14
mm
10
mm
30
3.0
17
mm
12
mm
55
5,5
19
mm
14
mm
85
8.5
22
mm
16
mm
130
13.0
DEFINITION OF UNITS
OF MEASUREMENT
Unit Meaning
Definition
Measure
mm
cm
millimetre
centimetre
10
-3
metres
10
-2
metres
Length
Length
kg kilogram !0
3 grams Weight
N
Newton
1
kg
x
m/sec
2 Force
Nm
mkg
Newton-metre
metre per
kilo
N
x
m
mxkg
Torque
Torque
Pa
N/mm
Paskal
Newton per
mm
N/m
2
N/mm
Pressure
Spring constant
L
cm
3
Litre
Cubic
centimetres
^~ Volume
or capacity
rpm Revolutions per minute
^—
Engine
speed
2-19
2-20